66888380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257263}}^1$

素因数の和:257285

約数の個数: 24

約数和(自身を含む): 151271232

約数和(自身を除く): 84382852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 257263, 514526, 1029052, 1286315, 2572630, 3344419, 5145260, 6688838, 13377676, 16722095, 33444190, 66888380]

約数ペア:

[(1, 66888380), (2, 33444190), (4, 16722095), (5, 13377676), (10, 6688838), (13, 5145260), (20, 3344419), (26, 2572630), (52, 1286315), (65, 1029052), (130, 514526), (260, 257263)]